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Finding the Fourth Proportional to 66,165.60, 91,307.41 and 35,951.38

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Solution

The fourth proportional to 66,165.60, 91,307.41 and 35,951.38 is: 49,612.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,165.60 : 91,307.41 = 35,951.38 : x
  2. Step 2: Convert to fraction form
    66,165.60/91,307.41 = 35,951.38/x
  3. Step 3: Cross multiply
    66,165.60x = 91,307.41 × 35,951.38
  4. Step 4: Simplify right side
    66,165.60x = 3,282,627,393.73
  5. Step 5: Solve for x
    x = 3,282,627,393.73/66,165.60
  6. Step 6: Final answer
    x = 49,612.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.